5.5 inch Office Chair Gas Lift Cylinder- Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston (Black)

Exactly as advertised, it fit perfectly and I love the chair again! one thing to keep in mind: getting the old cylinder out can be challenging. I used a rubber mallet and a fair number of hits before the legs popped off. Other than that, it was quick and easy!

I don`t know why when you buy a chair, they put in cheap pumps that don`t work for very long usually the weight is about 200 pounds, and our chair lasted about 6 months, So I installed a new pump which is rated for 1000 pounds, I installed it with no problem and it works great, so far no sign of the pump failing great buy.

I own a Steelcase office chair. Its gas lift cylinder wasn’t tall enough for my studio and it started to sag after a few hours of sitting. Along comes this OmyOffice 5 1/2” gas lift cylinder. First of all it took an act of congress to get my current cylinder uninstalled. You’ll need a large pipe wrench. I also tried using a large rubber mallet. It took me a while. Once I got the new one installed I could position the chair much higher than before, however when I sat down the chair lowered all the say to the bottom. I thought the new cylinder was defective. Turns out that the mechanism that depressed the button on the top of the cylinder on my chair had a screw. The original button on the original cylinder was kind of recessed. So with the new cylinder the button was pressed regardless of what the chair lever was doing. I ended up having to cut some of the plastic button off on the new cylinder, thus shortening the height of the button. That fixed the problem and the cylinder works perfectly. I suspect that is not common to all the other chairs out there, but if your chair won’t stay up that might be why. It arrived quickly and I’d buy it again.

Why did you pick this product vs others?:My old cylinder had the dreaded slowly sinking issue when I sat on it. I would guess it was 10 years old and the cushions were still in great shape. I paid over $400.00 for the chair so I thought I would rebuild it and use it for my workbench in the basement.Ease of assembly:I saw a lot of YouTube videos that showed that it was tough to get the cylinder off the chair bracket. I used a heat gun at 300 degrees and a pipe wrench to loosen the old one, it made it easy. On the chair base there is a c-clip which I removed that held in the old cylinder and I was able to use a mallet to knock out the old housing. Fit:Perfect fit and I am very happy. I also replaced the wheels with single roller wheels which I also got from Amazon - See my other review. The chair is like brand new for under $50.00I would do this same repair again.Scale =1 Star - I don’t recommend - Returned;2 Stars - Don't Recommend - Kept Product;3 Stars - Recommend - Meets Expectations;4 Stars - Recommend - Exceeds Expectations;5 Stars - Perfect 10 (rare)

So far so good! I just got this installed on my office chair. I knew it was going to be a bit taller than my original, but that is okay, I am 6'7" and a chair being a little taller is quite alright with me.However, it ended up being about 5 inches taller once fully extended! When I lean back in my chair MY FEET ACTUALLY DANGLE IN THE AIR!!!! I have not had this happen in quite a long time!1000% would DEFINITELY buy again!

I have been using this hydraulic chair shaft for nearly a year. It's very heavy duty and sturdy. It was very easy to remove the old shaft and put in the new one. The old shaft lost its pressure and the seat would sink slowly over time. This one hasn't has one problem. If you need a new seat support shaft that is easy to install, this one will work fine.

After install my Ikea Markus was definitely higher than normal, but felt sturdier and smoother overall. Definitely recommend if you’re a taller person using an Ikea Marcus office chair

The reason why I'm giving this a four-star review is because it works for about 4 to 6 months and then after that you almost certainly have to buy another one. And that's kind of the worst thing about it. However, it works very well during that time.